I have a client running AVID v8.9.3. When they import a .wav file that I've output, it appears to be one frame long on import. (it's a 15 second commercial).

This does not appear to be the case if I send an .AIF.

I've imported the .wav file into several other programs on my end (Wave Agent, Izotope RX, Davinci Resolve) and the .wav file appears to be the correct length (though the start TC is 1 frame early for some reason).

Did you create the WAV on the frame-grid in PT or is it just over a frame border long? The AVID will compensate that by adding samples with digital zero audio up to the next full frame so it can work with the file correctly.

I just had the same thing happen. A 53 minute file bounced in Digital Performer at 48kHz drag and dropped onto Pro Tools 2018.4 also at 48kHz. Changed length to 57 minutes and played slower and distorted. If imported via import audio menu it offered to convert the file and subsequently played it ok.

I just had the same thing happen. A 53 minute file bounced in Digital Performer at 48kHz drag and dropped onto Pro Tools 2018.4 also at 48kHz. Changed length to 57 minutes and played slower and distorted. If imported via import audio menu it offered to convert the file and subsequently played it ok.

That sounds like a case of DP outputting the file with incorrect header data. If the header misreports that it's a 44.1 file, dropping it into a 48K session would stretch it out to about 57.6 minutes.